Overview
The M-21S is a microphone input module to be used in conjunction with the 900 series components and other TOA's equipment. It has a transformer balanced microphone input with screw terminals, remote volume control function, phantom power supply function, and gain and tone controls.
Specifications
| Power Source | 24 V DC (supplied from the main frame) |
|---|---|
| Current Consumption | 30 mA |
| Input Sensitivity | -60 dB* (rated output: -20 dB*), adjustable: -72 to -52 dB* |
| Input Impedance | 600 Ω, balanced transformer-isolated |
| Frequency Response | 25 Hz - 20 kHz ±1.5 dB |
| Distortion | 0.05 % or less (1 kHz, output: 0 dB*) |
| Noise Level | -86 dB* (20 Hz - 20 kHz BPF), input equivalent noise: -126 dB* |
| Gain | 32 - 52 dB |
| Phantom Power | +22 V DC (active or disable selectable) |
| Tone Control | 100 Hz: 0 to -10 dB, 10 kHz: 0 to -10 dB |
| Remote Control Range | 0 to -55 dB |
| Connector | 5 Screw terminals |
| Dimensions | 35 (W) × 78 (H) × 88 (D) mm (1.38 × 3.07" × 3.46")" |
| Weight | Max. 90 g (0.2 lb) |
